Internal-combustion motor



H. M.- SANFORD. INTERNAL COMBUSTION MOTURQ APELICATlON FILED JAN. IL 1920. 1,372,250. Patented Mar. 22, 1921.

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ATTORNEYS,

ilNlTED STATES HAROLD M. SANFORD, OF SAN ANTONIO, TEXAS.

INTERNAL-COMBUSTION MOTOR.

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Specification of Letters Patent.

Patented Mar. 22, 1921.

Application filed January 12, 1920. Serial No. 350,889.

To all whom, it may 007:. com

lie it known that L l-LinoLn M. SANFORD, citizen or the United States, residing at San rintonio, in the county of Boxar and State of Texas, have invented certain new and useful Improvements in Internal-Coinbastion h iotors, of which the following is a specification.

This invention relates to new and useful improvements in an internal-combustion motor. i

One object of the invention is to provide an internal combustion motor having :1 cylinder formed of a stationary sleeve and provided with an intake and an exhaust port and a rotatable sleeve fitted around the stationary sleeve and provided with corresponding ports adapted to be brought into and out of registration with the intake and exhaust ports, thus forming an intake and an exhaust valve which controls said ports and further embodies means for actuating said rotatable sleeve.

Another object oi the. invention resides in the provision oli an improved method of lubricating the rotatable sleeve and the inecaanism through which said sleeve is actuated.

1h still further feature of the invention resides in the provision of a motor oi the character described. whose parts are readily accessible, thus facilitating repairs, and which may be readily removed "for replace ment.

With the above and other objects in view, the invention. has particular relation to 'certain novel features at construction operation and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawings wherein Figure 1 is a vertical sectional view of one oi the cylinders of the motor,

Fig. 2, is a plan view of the motor.

Fig. 3 is a side elevation thereof shown partially in section and Fig. 4 shows a fragmentary plan view of the rotating sleeve and the actuating mechanism thereof.

Referring now more particularly to the drawings wherein like numerals of reference designate similar parts in each of. the figures, the numeral 1. refers to the motor, which is shown of the tour cylinder type, the numeral 2 designates the intake manifold through which the motive fluid is delivered tothe respective cylinders and the numeral 3 designates the exhaust manifold through which the spent gases are delivered from said cylinders. Each cylinder is formed of a stationary sleeve d iorined of double walls, thus providing a chamber 5 for the circulation of water thercthrough to cool the cylinder and the heads (3 and 7 are pro vided which are threaded into the open ends oil? these walls to close the same, said heads being integrally connected by incans oi the tubular neck 8 which is internally threaded to receive the spark plug 9. Chamber 5 has the inlet water pipe 10 and the outlet water pipe 11 provided for the circulation of water through said chamber. The stationary sleeve has an intake port 12 and an exhaust port 13, arranged si'ibstantially opposits the intake port, and these respective intake and exhaust ports oi the cylinders are connected to the intake and exhaust manifolds 2 and 3.

Surrounding each stationar sleeve there is a rotatable sleeve l l which is provided with intake and exhaust ports 15 and 16 so disposed as to he brought into and out of registration with the respective ports 12 and 13 as the sleeve lei rotates. Fastened to the upper end of each sleeve l l there is an annular vscrew gear 17 and in mesh with said screw gears there are the correspoiuling screw gears 18, which are fastened upon the lengtl'iwise shaft 19. This'shaiit and the gears thereof are inclosed in the long was ing 20 designed to contain a lubricant for lubricating said gears and each rotatable sleeve M is provided with the lubricating ports 21 which conni'iunicate with the cham ber within the casing- 20 and the lubricant within. said chamber finds its way through rid ports between said sleeves, and directly from said chamber around the rotatable sleeve, and provision is thus made for constantly lubricating the sleeves. The rotatable sleeve is mounted to rotate on antifriction bearings 22, as illustrated in Fig. 1 to reduce the friction thereof.

The shaft 19 is rotatably mounted in suitable bearings 23 carried by the top of the motor and one end thereof has the sprocket wheel 24: iixed thereon in alinement with the sprocket wheel 25 which is fixed upon the drive shaft 26 and operating over these sprocket wheels and transmitting rotation from the latter to the former is the sprocket chain 27. Through the mechanism described the shaft 19 is rotated and rotation is thus imparted to the rotatable sleeve 14 through the gearing described. The mechanism is so timed as to register the intake and exhaust ports of the rotatable and stationary sleeves at the proper time to admit the charge and discharge the spent gases.

Within the respective cylinders are the pistons 28 which are connected to the crank shaft 29 through the connecting rods 80.

The respective cylinder heads are secured to the cylinders by means of bolts as 31 and said bolts may be removed permitting the removal of the stationary sleeve 4 for cleaning and repairing the same and when said stationary sleeve is removed, the

rotatable sleeve may then also be readily withdrawn.

What I claim is:

1. In an internal combustion motor, a cylinder formed of a stationary sleeve provided with an intake and an exhaust port a surrounding rotatable sleeve provided with corresponding ports adapted to register with the ports of the stationary sleeve, a

mechanism operatively connected with and driven from the motor crank shaft and also operatively connected with said rotatable sleeve and driving the same, an inclosing casing for said driving means, forming a chamber, provided to contain a lubricant, the rotatable sleeve having ports which communicate withsaid chamber and through which a lubricant is admitted between said sleeves.

2. In an internal combustion motor a stationary, and a surrounding rotatable sleeve, the latter having lubricant ports, a casing forming an inclosed lubricant chamber; a mechanism within the chamber for driving the rotatable sleeve, said chamber being lo cated to deliver a lubricant around the ro tatable sleeve, and through said ports between said sleeves.

In testimony whereof I have signed my name to this specification in the n'esence of two subscribing witnesses.

HAROLD M. SANFORD.

Witnesses:

ROLLINS C. SYEAN, F. W. LEMBURG. 

